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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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Reference Standard

2-Oxymoxifloxacin chemical structure

2-Oxymoxifloxacin

CAS: 1395056-41-3
Formula: C₂₁H₂₂FN₃O₅
MW: 415.4 g/mol

VQ-026788

Reference Standard

2-Phenylacetophenone chemical structure

2-Phenylacetophenone

CAS: 451-40-1
Formula: C₁₄H₁₂O
MW: 196.24 g/mol

VQ-041338

Reference Standard

2-Piperidin-4-yl-1H-benzimidazole chemical structure

2-Piperidin-4-yl-1H-benzimidazole

CAS: 38385-95-4
Formula: C₁₂H₁₅N₃
MW: 201.27 g/mol

VQ-024580

Reference Standard

2-Propyl-1,3-diazaspiro[4.4]non-1-en-4-one chemical structure

2-Propyl-1,3-diazaspiro[4.4]non-1-en-4-one

CAS: 148236-54-8
Formula: C₁₀H₁₆N₂O
MW: 180.25 g/mol

VQ-026213

Reference Standard

2-Propyl-1H-imidazole-4, 5-dicarbonitrile chemical structure

2-Propyl-1H-imidazole-4, 5-dicarbonitrile

CAS: 51802-42-7
Formula: C₈H₈N₄
MW: 160.18 g/mol

VQ-039142

Reference Standard

2-Propylidenebutanedioic acid chemical structure

2-Propylidenebutanedioic acid

CAS: 5796-70-3
Formula: C₇H₁₀O₄
MW: 158.15 g/mol

VQ-038872

Reference Standard

2-Pyridylethylamine chemical structure

2-Pyridylethylamine

CAS: 2706-56-1
Formula: C₇H₁₀N₂
MW: 122.17 g/mol

VQ-039959

Reference Standard

2-Pyrimidinemethanamine hydrochloride chemical structure

2-Pyrimidinemethanamine hydrochloride

CAS: 372118-67-7
Formula: C₅H₈ClN₃
MW: 145.59 g/mol

VQ-035863

Reference Standard

2-Pyrrolidinylphosphonic Acid chemical structure

2-Pyrrolidinylphosphonic Acid

CAS: 73858-59-0
Formula: C₄H₁₀NO₃P
MW: 151.1 g/mol

VQ-020756

Reference Standard

2-Stearoyl-Sn-Glycero-3-Phosphocholine chemical structure

2-Stearoyl-Sn-Glycero-3-Phosphocholine

CAS: 4421-58-3
Formula: C₂₆H₅₄NO₇P
MW: 523.7 g/mol

VQ-040477

Reference Standard

2-Sulfobenzoic acid chemical structure

2-Sulfobenzoic acid

CAS: 632-25-7
Formula: C₇H₆O₅S
MW: 202.19 g/mol

VQ-032588

Reference Standard

2-tert-Butyl-5-Methylphenol chemical structure

2-tert-Butyl-5-Methylphenol

CAS: 88-60-8
Formula: C₁₁H₁₆O
MW: 164.24 g/mol

VQ-032364

Reference Standard

2-Tert-Butylaniline chemical structure

2-Tert-Butylaniline

CAS: 6310-21-0
Formula: C₁₀H₁₅N
MW: 149.23 g/mol

VQ-043363

Reference Standard

2-Tert-Butylbenzenesulfonamide chemical structure

2-Tert-Butylbenzenesulfonamide

CAS: 193013-72-8
Formula: C₁₀H₁₅NO₂S
MW: 213.3 g/mol

VQ-029478

Reference Standard

2-Tetrahydrofuroic Acid chemical structure

2-Tetrahydrofuroic Acid

CAS: 16874-33-2
Formula: C₅H₈O₃
MW: 116.11 g/mol

VQ-021490

Reference Standard

2-Thioadenosine chemical structure

2-Thioadenosine

CAS: 43157-50-2
Formula: C₁₀H₁₃N₅O₄S
MW: 299.31 g/mol

VQ-032726

Reference Standard

2-Thiomorpholinol chemical structure

2-Thiomorpholinol

CAS: 2097678-00-5
Formula: C₄H₉NOS
MW: 119.19 g/mol

VQ-036480

Reference Standard

2-Thiopheneethanol Tosylate chemical structure

2-Thiopheneethanol Tosylate

CAS: 40412-06-4
Formula: C₁₃H₁₄O₃S₂
MW: 282.4 g/mol

VQ-033681

Reference Standard

2-Tolperisone HCL chemical structure

2-Tolperisone HCL

CAS: 91625-73-9
Formula: C₁₆H₂₄ClNO
MW: 281.82 g/mol

VQ-028439

Reference Standard

2, 3-Dihydroxy-N,N,N-Trimethylpropan-1-Aminium Chloride chemical structure

2, 3-Dihydroxy-N,N,N-Trimethylpropan-1-Aminium Chloride

CAS: 34004-36-9
Formula: C₆H₁₆ClNO₂
MW: 169.65 g/mol

VQ-026427

Reference Standard

2, 4-Dicyanonitrobenzene chemical structure

2, 4-Dicyanonitrobenzene

CAS: 52054-41-8
Formula: C₈H₃N₃O₂
MW: 173.13 g/mol

VQ-048346

Reference Standard

2,2`-(Cyclopropane-1,1-diyl)diacetic acid chemical structure

2,2`-(Cyclopropane-1,1-diyl)diacetic acid

CAS: 70197-77-2
Formula: C₇H₁₀O₄
MW: 158.15 g/mol

VQ-038489

Reference Standard

2,2`-[5-[(2,5-Dioxotetrahydro-1H-1-pyrrolyl)methyl]-1,3-phenylene]di(2-methylpropionitrile) chemical structure

2,2`-[5-[(2,5-Dioxotetrahydro-1H-1-pyrrolyl)methyl]-1,3-phenylene]di(2-methylpropionitrile)

CAS: 1301724-97-9
Formula: C₁₉H₂₁N₃O₂
MW: 323.4 g/mol

VQ-047403

Reference Standard

2,2`-Ethylenedianiline chemical structure

2,2`-Ethylenedianiline

CAS: 34124-14-6
Formula: C₁₄H₁₆N₂
MW: 212.29 g/mol

VQ-021992

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